public class DocAvailable extends SystemFunction
Modifier and Type | Class and Description |
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static class |
DocAvailable.ErrorDiscarder |
operation
argument
EFFECTIVE_BOOLEAN_VALUE, EVALUATE_METHOD, EVENT_FEED_METHOD, ITEM_FEED_METHOD, ITERATE_METHOD, locationId, MAX_SEQUENCE_LENGTH, MAX_STRING_LENGTH, PROCESS_METHOD, PUSH_SELECTION, staticProperties, UNBOUNDED_LOWER, UNBOUNDED_UPPER, WATCH_METHOD
Constructor and Description |
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DocAvailable() |
Modifier and Type | Method and Description |
---|---|
void |
checkArguments(ExpressionVisitor visitor)
Method called during static type checking
|
boolean |
docAvailable(String href,
XPathContext context) |
Item |
evaluateItem(XPathContext context)
Evaluate the expression
|
String |
getStaticBaseURI()
Get the static base URI of the expression
|
Expression |
preEvaluate(ExpressionVisitor visitor)
preEvaluate: this method suppresses compile-time evaluation by doing nothing
|
addContextDocumentArgument, addDocToPathMap, computeCardinality, computeSpecialProperties, copy, equals, getDetails, getErrorCodeForTypeErrors, getImplementationMethod, getItemType, getOperation, getRequiredType, makeSystemFunction, optimize, setDetails, useContextItemAsDefault
addExternalFunctionCallToPathMap, checkArgumentCount, explain, getArguments, getDisplayName, getExpressionName, getFunctionName, getNumberOfArguments, hashCode, iterateSubExpressions, promote, replaceSubExpression, setArguments, setFunctionName, simplify, simplifyArguments, toString, typeCheck
addToPathMap, adoptChildExpression, checkForUpdatingSubexpressions, checkPermittedContents, computeDependencies, computeStaticProperties, doPromotion, dynamicError, effectiveBooleanValue, evaluateAsString, evaluatePendingUpdates, explain, getCardinality, getColumnNumber, getColumnNumber, getConstructType, getContainer, getDependencies, getEvaluationMethod, getExecutable, getHostLanguage, getIntegerBounds, getIntrinsicDependencies, getLineNumber, getLineNumber, getLocationId, getLocationProvider, getObjectName, getProperties, getProperty, getPublicId, getSlotsUsed, getSpecialProperties, getSystemId, getSystemId, hasLoopingSubexpression, hasVariableBinding, implementsStaticTypeCheck, isSubtreeExpression, isUpdatingExpression, isVacuousExpression, iterate, iterateEvents, iterateSameFocusSubExpressions, markTailFunctionCalls, process, resetLocalStaticProperties, setContainer, setEvaluationMethod, setFiltered, setFlattened, setLocationId, staticTypeCheck, suppressValidation, typeError
public void checkArguments(ExpressionVisitor visitor) throws XPathException
SystemFunction
checkArguments
in class SystemFunction
visitor
- the expression visitorXPathException
- if the arguments are incorrectpublic String getStaticBaseURI()
public Expression preEvaluate(ExpressionVisitor visitor)
preEvaluate
in class FunctionCall
visitor
- an expression visitorpublic Item evaluateItem(XPathContext context) throws XPathException
evaluateItem
in class Expression
context
- XPathException
public boolean docAvailable(String href, XPathContext context) throws XPathException
XPathException